Can some body solve this?

Question

we say that astronomical bodies revolve around one another due to Force of Gravitation?why do they not collide with one another instead of revolving?

Answer 1

the case is similar to that of the elecrton and the nucleus -The circular motion-
the electron has a linear velocity and the centeripetal force (the gravitation force of the nucleus) is trying to pull it towards the nucleus .. vectur sum the vectors , the path will be circular
so it doesnt go away from its path cuz of the gravitation force that is pulling here toward the nucleus , and it wont collide cuz of its linear velocity which keeps it in its path ... this is instantinuously:
\....../|\..(v)
...\... |.......
..<----e....
..(Fc).......

Answer 2

They do not collide because they are moving. This means they have kinetic energy, and so they settle into an orbit where their kientic energy and potential energy due to the pull of gravity are balanced.

This is equivalent to saying the movement in a circle gives requires a force, and that force is exactly provided by gravity. Hence the stable, equilibrium path is an orbit not a collision.

Answer 3

The object is kept in orbit because of 2 forces acting: gravitation force, which is the pull of the other object, and velocity, which is the spinning of the object on its own axis. These two force work together to make the object revolve. The fact that it is spinning on its own axis - velocity - is what keeps it from crashing into the other body.

Answer 4

Take the simplest case:
Two bodies on random paths approach each other.
Unless they are on directly opposite courses, (a very rare chance), they will miss each other, passing with a certain relative velocity.
If they become gravitationally bound they will orbit each other. The orbits may be hyperbollic, (they have enough energy to escape), eliptical, (they remain bound together), or spiral, (they eventually collide).
Since all but the bound orbit situation don't last very long, which do you expect to see more of?

Answer 5

well if it wasn't going around it would collide - if it wasn't going around and there was no object to be attracted to it would fly off - so when the above happens theres nothing to see - but when the forces are balanced you have an orbit where the force wanting it to fly off is balanced by the force of the attraction of the centre object

Answer 6

This is my best guess, truly a guess though.
On a planetary scale, the gravity from the sun pulls the planets in but then since it is on a 3D scale it doesn't pull it straight to the sun, it pull it to the side of the sun and it keeps moving forwards (objects in motion stay in motion, but then..). However the sun pulls it back for another round.
I hate to think of it but I'm sure one day we'll be sucked into the sun, but that's years before the meteors doom us all.
(COMPLETE guess.. sounded good though XD)

Answer 7

long branch set up as any long branch concern. x^2 is going into x^3, x situations multiplying x^2+5x-7 via utilising x, you get x^3+5x^2-7x subtracting this from the unique, you get x^3 cancels out -4x^2-20x+28 x^2 is going into -4x^2, an -4 situations multiplying -4 via utilising the divisor, you get -4x^2-20x+28 subtracting this would furnish 0 for this reason your answer is x-4 guy made branch Factoring the unique quantity provides (x-4)(x+2)(x-3) dividing this via utilising x-3, the (x-3)'s cancel out offering you with an answer is (x-4)(x+2) want this allows!!!

Answer 8

you already answered your question....because of gravitational pull of the Sun

Answer 9

they develop certain energy on its sorroundings so that it can develope a magnetic field.hence it will repel the body coming nearer to it.